how do you adj ph level for us begginers

sulfer

dolmite lime

Can somebody help me with how to adj ph levels I am confussed or in all probablity just dumb. What do i use if its to high? And what do i use if its to low? Ive hrard every thing from sulfer to wood ash crused marble. Right now the plants are about a month old Ichecked the ph last night and it was 6.5. Ijust want to be prepared . I have one more question where in heck do you buy bat guano?

Originally posted by merle snider Can somebody help me with how to adj ph levels I am confussed or in all probablity just dumb. What do i use if its to high? And what do i use if its to low? Ive hrard every thing from sulfer to wood ash crused marble. Right now the plants are about a month old Ichecked the ph last night and it was 6.5. Ijust want to be prepared . I have one more question where in heck do you buy bat guano?